US1257011A - Valve. - Google Patents

Description

`L T. MORRIS,

VALVE. APPLICATION FILED FEB. l5. 1916.

JOI-IN T. MORRIS, 0F WYNNE, MARYLAND, ASSIGNOR T0 LYDIA A. MORRIS, OF ST. INIGOES, MARYLAND.

Y VALVE.

Specification of Letters Patent.

Patented Feb. 19, 1918.

Application led February 15, 1916. Serial No. 78,449.

To all whom t may concern.'

Be it known that I, JOHN T. MORRIS, a citizen of the United States of America, and a resident of Wynne, Maryland, have invented certain new and useful Improvements in Valves, of which the following is a specication.

This invention relates to a novel construction of valves whereby the ready removal of a defective valve may be effected, and whereby a new valve may be inserted and locked in place with equal facility, and this I accomplish by such a construction of the valve-supporting parts, and of the valve seatv and valve flap that theV two latter may be removed and inserted Vthrough the former, and mayV be readily locked in place without necessitating the use of 4special tools.

`While the .invention is applicable generally to valves, it finds a special field of utility in connection with the foot valves present in pumps, or in the` foot pipes thereof, and especially in connection with the foot valves of what are known as bilge pumps, these latter consisting of sheet metal cylinders of a number of feet in length in which reciprocate valved pistons, andwhich terminate at their bases in foot castings, supporting check or intake valves. It is the practice to solder the foot castings in the sheet metal cylinders of these pumps, and to replace a defective valve flap has necessitated the unsoldering of the foot casting;VV the replacement of the defective flap valve with anew one, and a re-soldering of the foot casting to the cylinder. My invention is therefore shown in connection with a foot casting of such a bilge pump,

althouo'h it is obvious that it is not restricted thereto.

The invention consists in the construction, arrangement, and combination of the several parts of which it is composed, as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings in which corresponding parts are designated by corresponding marks of reference- Figure 1 is a vertical section through the base of a bilge pump having my invention applied thereto.

Fig. 2 1s a perspective view of a valve flap adapted to be used in the structure shown in Fig. l. v

Fig. 5 1s aperspective View showing the manner of removing or assemblinga valve Viiap and valve seat through the foot casting.

Fig. 6 is a plan view showing a transitory position assumed by the parts after the insertion of a valve iap and seat in the footcasting, and before the sameV are locked therein.

Fig. 7 is a similar view, but showing the locked position of the parts. This figurevis a horizontal section taken on lines XL- 7 of Fig. 1.

Referring to Fig. l, 1 represents the sheet metal cylinder of a bilge pump, and in its lower end is properly secured, as by soldering, a foot-casting 2 which may be provided with feet 3. Intermediate of its height, the foot casting is provided with an internal iiange 4, which provides a support for the valve parts, and the Ainner wall of the casting has above such flange a plurality of ears 5. In the drawings, four such ears are shown equally spaced apart around the casting, and designated respectively as 5, 5a, 5b and 5 The inside of .this flange has a minor and major diameter preferably effected by forming slots 6 therein. These slots preferably do not extend throughout the full width of the ange, and therefore leave between their bases and the inner wall of the casting a portion of the ange, so that the flange may be said to be continuous adjacent to such a wall. By preference, the location of the slots is directly below the ears 5a and 5c.

The movable element 6 of the valve may be of any approved construction. As shown, it consists of a flexible disk.

The valve seat 7 is in the form of a washer having major and minor external diameters. As shown this is effected by forming opposite sides of the washer by parallel.

chords 7a, and thediameter of the washer valve-seat, and a movable valve element carflange provided with opposite slots therein,

the flange being'uninterrupted adjacent to the inner wall of the casting, and the casting having a plurality of locking ears upon its inner wall above such flange, of a valve-seat and movable valve element carried thereby, the Valve-seat having a minor external axis less than the distance between the bases of the slots in the flange and having a major axis greater than such distance, and having a recess registering with one of said ears upon the casting when the valve seat is in one angular position upon the flange, and means for shifting the valve-seat from such angular position to another angular position, in which last named angular position Vthe ears over-lie the edges of the washer, and

the minor axis of the valve seat is not coincident with the line joining the said slots.

4. The combination with a substantially cylindrical foot-casting having an internal flange provided with opposite slots therein, the flange being uninterrupted adjacent to the inner wall of the casting, and the casting having a plurality of locking ears upon its inner wall above such flange, the lower faces of such ears forming cams, of a valve seat, and movable valve element carried thereby, the valve-seat having a minor external axis less than the distance between the bases of the slots in the flange, and having ak major external axis greater than such distance, and having a recess registering with one of said ears upon the casting when the valve-seat is in one angular position upon the flange, and means for shifting the valve-seat from such angular position to another angular position, in which last named angular position the ears over-lie the edges of the washer and the minor axis of the valve seat is not coincident'with the line joining the said slots.

5. The combination with a substantially cylindrical foot-casting provided with an internal flange slotted at diametrically opposite points throughout a portion only of its depth, whereby the flange is rendered continuous adjacent to the inner wall of the casting, the casting having a plurality of cam ears thereon, a valve-seat resting on the flange and beneath the cam ears, the valveseat having a minor external diameter less than the distance between the bases of the slots, and a major external diameter greater than such distance, the minor diameter of the seat not being coincident with the line joining the said slots, the seat having a recess in its periphery adjacent to one of the said ears, but not registering therewith, and a moving valve element supported and carried by the valve seat.

In testimony whereof I hereunto sign'my name this fourth day of February, 1916.

JOI-IN T. MORRIS.

Copies ot this patent may be obtained.l for ve cents each, by addressing the Commissioner ot Patents,

Washington, D. C.

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